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Finding the Fourth Proportional to 563.90, 845.55 and 267.09

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Solution

The fourth proportional to 563.90, 845.55 and 267.09 is: 400.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    563.90 : 845.55 = 267.09 : x
  2. Step 2: Convert to fraction form
    563.90/845.55 = 267.09/x
  3. Step 3: Cross multiply
    563.90x = 845.55 × 267.09
  4. Step 4: Simplify right side
    563.90x = 225,837.95
  5. Step 5: Solve for x
    x = 225,837.95/563.90
  6. Step 6: Final answer
    x = 400.49

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.